Population

Five year age groups

About this topic

Five year age groups show the population in standard five-year cohorts from early childhood through older age. Because each band covers the same span of years, the topic gives a clear and comparable view of an area's age structure.

This topic is useful for identifying growth or decline in specific cohorts and for comparing age patterns across places and over time. For service planning, it is often read together with service age groups, household types, and dwelling types.

Interpretation notes

  • Age is reported as at Census night, so the counts are a snapshot of the resident age structure at that point in time.
  • Because each band covers the same five-year span, this topic is best for exact cohort comparison rather than service-planning life stages.

Key insight

In 2021, 40 to 44 year olds was the largest age group among residents in Kings Langley, accounting for 7.7% (723 people). This share was similar to Blacktown (C) (7.8%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 224 people and 2.3 percentage points.

Section overview

Age structure - Five year age groups

Kings Langley - Total persons (Usual residence)

This table summarises five year age groups for Kings Langley in 2021 for persons, with comparison against Blacktown (C) and change since 2016.

Age structure - Five year age groups snapshot

2021 distribution by category for Kings Langley, with comparison markers for Blacktown (C).

Kings Langley
Blacktown (C)

0 to 4

2021 count

550

% of total

5.9%

Change from 2016

-1.2pp

5 to 9

2021 count

681

% of total

7.3%

Change from 2016

+0.3pp

10 to 14

2021 count

625

% of total

6.7%

Change from 2016

+0.3pp

15 to 19

2021 count

598

% of total

6.4%

Change from 2016

-0.4pp

20 to 24

2021 count

522

% of total

5.6%

Change from 2016

+0.6pp

25 to 29

2021 count

340

% of total

3.6%

Change from 2016

-1.6pp

30 to 34

2021 count

494

% of total

5.3%

Change from 2016

-1.1pp

35 to 39

2021 count

684

% of total

7.3%

Change from 2016

-0.3pp

40 to 44

2021 count

723

% of total

7.7%

Change from 2016

+0.8pp

45 to 49

2021 count

665

% of total

7.1%

Change from 2016

+0.2pp

50 to 54

2021 count

622

% of total

6.6%

Change from 2016

0.0pp

55 to 59

2021 count

580

% of total

6.2%

Change from 2016

-0.4pp

60 to 64

2021 count

522

% of total

5.6%

Change from 2016

-1.2pp

65 to 69

2021 count

575

% of total

6.1%

Change from 2016

-0.5pp

70 to 74

2021 count

547

% of total

5.8%

Change from 2016

+2.3pp

75 to 79

2021 count

299

% of total

3.2%

Change from 2016

+1.3pp

80 to 84

2021 count

175

% of total

1.9%

Change from 2016

+0.6pp

85 and over

2021 count

159

% of total

1.7%

Change from 2016

0.0pp

Data table

Five year age groups for Kings Langley. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Blacktown (C).

Five year age groups for Kings Langley. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Blacktown (C).
Five year age groups for Kings Langley. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Blacktown (C).
Category20212016Change
Count%Blacktown (C)%Count%Blacktown (C)%Countpp
0 to 45505.9%7.5%6627.1%8.0%-112-1.2pp
5 to 96817.3%7.9%6517.0%7.9%+30+0.3pp
10 to 146256.7%7.3%6016.4%6.9%+24+0.3pp
15 to 195986.4%6.1%6336.8%6.9%-35-0.4pp
20 to 245225.6%6.7%4685.0%6.8%+54+0.6pp
25 to 293403.6%7.0%4835.2%7.2%-143-1.6pp
30 to 344945.3%7.9%5966.4%8.3%-102-1.1pp
35 to 396847.3%9.2%7137.6%8.1%-29-0.3pp
40 to 447237.7%7.8%6456.9%7.2%+78+0.8pp
45 to 496657.1%6.4%6416.9%6.5%+24+0.2pp
50 to 546226.6%5.6%6156.6%6.0%+70.0pp
55 to 595806.2%5.1%6146.6%5.4%-34-0.4pp
60 to 645225.6%4.5%6356.8%4.6%-113-1.2pp
65 to 695756.1%3.7%6216.6%3.8%-46-0.5pp
70 to 745475.8%3.1%3233.5%2.5%+224+2.3pp
75 to 792993.2%1.9%1801.9%1.7%+119+1.3pp
80 to 841751.9%1.2%1221.3%1.1%+53+0.6pp
85 and over1591.7%1.1%1561.7%1.1%+30.0pp
Total9,354100.0%100.0%9,353100.0%100.0%+10.0pp